[Zope] Blobs in Interbase

[Bob Corriher]

Hi Ashely,

I use Interbase (and Firebird) in Zope regularly and I just use the 
regular ZSQL Method syntax for blob fields:

 <dtml-sqlvar name="blob_fld" type="nb">

to update the field.If the field may be left null, I usually use 
something like this in the ZSQL Method:

<dtml-if blob_fld>
<dtml-sqlvar name="blob_fld" type="nb">
<dtml-else>
null
</dtml-if>

Apply commas at the end (or beginning) of the <dtml-sqlvar> and null  if 
necessary.

This should work for Interbase from version 4.x thru Interbase 6.x and 
for all versions of Firebird.

If you need further help, just email me (and the list). Also, there is a 
Zope-DB list for discussing Zope and RDBMS issues and the real gurus 
hang out there.

HTH

Bob Corriher
CTO
P-Wave Inc.

Ashley wrote:

Hi bobb, thanks for your reply.

If I found the right post (reading an image from blob in mysql and
displaying it), then thanks very much but I don't think it'll apply too much
to my situation. I can retrieve the contents of the blob field fine, its
updating it that causes the problems.

Thanks again, though.

I posted directly out of Outlook Express, by the way, just hitting "New
Post".

Kind regards

Ashley



"bobb" <rawsystems at gmail.com> wrote in message
news:009101c59513$c40d4b50$6400a8c0 at rawlt1...

>> I posted some stuff I was doing some time ago w/ mysql / blobs and zope
>  
>
some

>> time ago so that my grandchildren could google for it :)...
>>
>> if you goggle for zope mysql blob bobb
>> you'll get it.  It's not interbase.
>> hth
>>
>> bobb
>>
>> Also, your post came through as a newsgroup posting, which means I had to
>> cut / paste / finagle the whole thing to reply... It's the first time I've
>> ever seen that (I use m$ outlook express) How are you posting to here?
>> (curious, that's all)
>>
>> "Ashley" <ashleylloyd at hotmail.com> wrote in message
>> news:dcd0n1$ida$1 at sea.gmane.org...
>  
>
>>> > I'm not sure if this is the right place for this, if not, my apologies.
>>> >
>>> > I've got a Clients table in an interbase db with various fields, one of
>>> > which is a BLOB field (subtype text), used to maintain some notes.
>>> >
>>> > When inserting a Client into the table, this field populates fine.
>>> >
>>> > However, when attempting to update the client, for some reason, it
>>    
>>
won't.

>> It
>  
>
>>> > just will not allow me to do an update with the notes field in the
>>> > statement. I've googled around, and found lots of bits helping with
>>    
>>
>> Delphi,
>  
>
>>> > and lots of statements that BLOB fields in Interbase are tricky to
>>    
>>
update,

>>> > but nothing that helps.
>>> >
>>> > Has anyone out there found a way around this?
>>> >
>>> > I'm using currently using gvib as my database adaptor, as kinterbase
>>    
>>
does

>>> > not seem to want to install at all (seemingly problems with ldap ..).
>>> >
>>> > My Zope instance is installed from a Plone installer.
>>> >       Zope Version  (Zope 2.6.1 (binary release, python 2.1, win32-x86),
>>> > python 2.1.3, win32)
>>> >       Python Version  2.1.3 (#35, Apr 8 2002, 17:47:50) [MSC 32 bit
>>    
>>
>> (Intel)]
>  
>
>>> >       System Platform  win32
>>> >
>>> >
>>> > Thanks in advance
>>> > Ashley
>>> >
>>> >
>>> >
>>> > _______________________________________________
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>>    
>>
>>
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>>
>  
>





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